Hard disk on RPi

Permanent, for data

Adding a USB hard drive to Raspberry Pi

FTP on Raspberry PI

FTP server on Raspberry Pi

GCC 6 on Raspberry PI

GCC 6 on Raspberry Pi

 

SDL2 2.0.5 on Raspberry PI, GPU hardware support

SDL2-2.0.5 on Raspberry Pi

ESP8266 Arduinoo lets control it

https://www.letscontrolit.com/wiki/index.php/Main_Page